Finding the Fourth Proportional to 1,341.50, 1,851.59 and 817.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.50 : 1,851.59 = 817.97 : x
2. Step 2: Convert to fraction form
   1,341.50/1,851.59 = 817.97/x
3. Step 3: Cross multiply
   1,341.50x = 1,851.59 × 817.97
4. Step 4: Simplify right side
   1,341.50x = 1,514,537.86
5. Step 5: Solve for x
   x = 1,514,537.86/1,341.50
6. Step 6: Final answer
   x = 1,128.99